Data carry over on the account

I had a problem that I couldn't log on to the internet. I found that my data didn't carry over from the previous months. This result in me had to buy more data to get onto the internet ( webmail ) to allocate the problem. I saw that my data didn't carried over. I have phoned the service provider and they made a enquiry that the problem be resolved on the Wednesday because the Tuesday was a public holiday. I had to phoned back and to find out that my enquiry is not yet attended to.